<template>
  <div id="demo">
    <button @click="isShow = !isShow">显示/隐藏</button>
    <transition-group
      appear
      name="animate__animated animate__bounce"
      enter-active-class="animate__swing"
      leave-active-class="animate__backOutUp"
    >
      <h1 v-show="!isShow" key="1">你好啊！</h1>
      <h1 v-show="isShow" key="2">尚硅谷！</h1>
    </transition-group>
  </div>
</template>

<script>
import "animate.css";
export default {
  name: "Hello6",
  data() {
    return {
      isShow: true,
    };
  },
  computed: {
    buttonMessage: function () {
      switch (this.docState) {
        case "saved":
          return "Edit";
        case "edited":
          return "Save";
        case "editing":
          return "Cancel";
      }
    },
  },
};
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
#demo {
  padding: 30px;
}
/*


      appear   可以通过 appear attribute 设置节点在初始渲染的过渡 初次渲染的时候就可以有动画
      name="animate__animated animate__bounce"
      固定写法
 */
</style>
